linux-kernel - Re: [PATCH 1/7] dell-led: remove GUID check from dell_micmute_led

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Date:   Fri, 9 Dec 2016 10:20:25 +0100
From:   Pali Rohár <pali.rohar@...il.com>
To:     Michał Kępień <kernel@...pniu.pl>
Cc:     Richard Purdie <rpurdie@...ys.net>,
        Jacek Anaszewski <j.anaszewski@...sung.com>,
        Matthew Garrett <mjg59@...f.ucam.org>,
        Darren Hart <dvhart@...radead.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Bob Rodgers <Robert_Rodgers@...l.com>,
        Louis Davis <Louis_Davis@...l.com>,
        Jim Dailey <Jim_Dailey@...l.com>,
        Alex Hung <alex.hung@...onical.com>,
        Hui Wang <hui.wang@...onical.com>, linux-leds@...r.kernel.org,
        platform-driver-x86@...r.kernel.org, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/7] dell-led: remove GUID check from
 dell_micmute_led_set()

On Thursday 08 December 2016 13:36:12 Michał Kępień wrote:
> As dell_micmute_led_set() no longer uses the dell_wmi_perform_query()
> method, which was removed in 0c41a08 ("dell-led: use
> dell_smbios_send_request() for performing SMBIOS calls"), the
> DELL_APP_GUID check is redundant and thus can be safely removed.
> 
> Signed-off-by: Michał Kępień <kernel@...pniu.pl>
> ---
>  drivers/leds/dell-led.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/drivers/leds/dell-led.c b/drivers/leds/dell-led.c
> index b3d6e9c..e8e8f67 100644
> --- a/drivers/leds/dell-led.c
> +++ b/drivers/leds/dell-led.c
> @@ -51,9 +51,6 @@ static int dell_micmute_led_set(int state)
>  	struct calling_interface_buffer *buffer;
>  	struct calling_interface_token *token;
>  
> -	if (!wmi_has_guid(DELL_APP_GUID))
> -		return -ENODEV;
> -
>  	if (state == 0)
>  		token = dell_smbios_find_token(GLOBAL_MIC_MUTE_DISABLE);
>  	else if (state == 1)

Reviewed-by: Pali Rohár <pali.rohar@...il.com>

Anyway, you can remove DELL_APP_GUID from other places too...

-- 
Pali Rohár
pali.rohar@...il.com